questions/big-data-hadoop
You can access logs through the command yarn ...READ MORE
You can increase the threshold in yarn-site.xml <property> ...READ MORE
Hadoop tester, like any other tester, has ...READ MORE
Hello. Knowing basics of Linux is mandatory ...READ MORE
Try this, first stop all the daemons, ...READ MORE
You can use the split function along ...READ MORE
Hey, you can try something like this: df.write.partitionBy('year', ...READ MORE
Seems like PATH problem in hadoop-env.sh file. Try ...READ MORE
You can find the definition here: $HADOOP_HOME/bin/hadoop ... elif [ ...READ MORE
It is now possible to insert like ...READ MORE
You can do the following method, copy to ...READ MORE
The hack you describe is more or ...READ MORE
Here's another link from Hadoop which may ...READ MORE
SELECT hash_id, COLLECT_LIST(num_of_cats) AS ...READ MORE
Try hadoop fs -mkdir -p /user/[Username] and then run ...READ MORE
Add these lines to your weblogic-application.xml file ...READ MORE
concatenation of substrings using the following code: select ...READ MORE
I n case of fair scheduler, when there is ...READ MORE
db.order.mapReduce(function() { emit (this.customer,{count:1,orderDate:this.orderDate.interval_start}) }, function(key,values){ var category; ...READ MORE
Default scheduler in hadoop is JobQueueTaskScheduler, which is ...READ MORE
The main difference between HDFS High Availability ...READ MORE
You have to add HADOOP_CLASSPATH environment parameter: expor ...READ MORE
Try this: Configuration conf = new Configuration(); ...READ MORE
Try adding this Job job = new Job(conf, ...READ MORE
In HDFS 8020 is IPC port, you ...READ MORE
Do a: sudo dpkg -l | grep hadoop to ...READ MORE
Hadoop needs to be able to serialise ...READ MORE
The simplest solution for Linux machines would ...READ MORE
Mapper and reducer classes need to be ...READ MORE
You can use hdfs fsck / to ...READ MORE
In Hadoop 1, testmapredsort is launched from AllTestDriver.java, which was ...READ MORE
Is it consistent or one-off reading? Is ...READ MORE
If you're asking if customer-supplied encryption keys ...READ MORE
In my day job, I've just spent ...READ MORE
/user/cloudera/data1 is not a directory, it is ...READ MORE
So when Hadoop was being written by ...READ MORE
One of the major pushes at SAS ...READ MORE
It's a bit non-intuitive, but it turns ...READ MORE
It does not. As of today HADOOP-11890, which ...READ MORE
Yes, at least in small clusters those ...READ MORE
COUNT is part of pig LOGS= LOAD 'log'; LOGS_GROUP= ...READ MORE
I'd like to point a few things. If ...READ MORE
Yes, it is a compatibility issue. in Hadoop ...READ MORE
I got this working with plain uncompressed ...READ MORE
kdb is a column oriented database plus ...READ MORE
MapR is a commercial distribution of Apache ...READ MORE
To start ZooKeeper you have to execute ZooKeeperServerMain class. You can use ...READ MORE
The easiest way is to use PyHive. To ...READ MORE
Add the following to your hadoop-env.sh file: export ...READ MORE
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